您好，欢迎访问中国水产科学研究院 机构知识库！
中国水产科学研究院机构知识库

全部

  • 全部
  • 标题
  • 学者
  • 机构
  • 关键词

Cadmium bioaccumulation and distribution in the freshwater bivalve Anodonta woodiana exposed to environmentally relevant Cd levels

文献类型： 外文期刊

作者： Chen, Xiubao 1 ; Liu, Hongbo 1 ; Huang, Honghui 2 ; Liber, Karsten 3 ; Jiang, Tao 1 ; Yang, Jian 1 ;

作者机构： 1.Chinese Acad Fishery Sci, Freshwater Fisheries Res Ctr, Key Lab Fishery Ecoenvironm Assessment & Resource, Wuxi 214081, Jiangsu, Peoples R China

2.Chinese Acad Fisheries Sci, South China Sea Fisheries Res Inst, Guangdong Prov Key Lab Fishery Ecol & Environm, Guangzhou 510300, Peoples R China

3.Univ Saskatchewan, Toxicol Ctr, 44 Campus Dr, Saskatoon, SK S7N 5B3, Canada

关键词： Soft tissue; Organ; Subcellular fractions; Biomonitoring

期刊名称：SCIENCE OF THE TOTAL ENVIRONMENT （ 影响因子：7.963； 五年影响因子：7.842 ）

ISSN： 0048-9697

年卷期： 2021 年 791 卷

页码：

收录情况： SCI

摘要： Anodonta woodiana is a globally distributed freshwater bivalve, which is a unique bioindicator in the "Freshwater Mussel Watch" project. Numerous countries have used A. woodiana for biomonitoring the aqueous cadmium (Cd) contamination. However, the bioaccumulation and distribution characteristics of environmentally relevant Cd con-centrations in the bivalve were unknown. In this study, A. woodiana was exposed to aqueous Cd concentrations (1.1, 2.6, and 5.5 mu g/L) for 30 days. The concentrations of Cd in the whole soft tissues were linearly and positively corre-lated with the aqueous Cd concentrations and exposure time (P < 0.05). Analysis of the organic bioaccumulation and distribution showed that Cd concentrations and proportions in the gills and mantle were linearly and positively cor-related with aqueous Cd concentrations and with the Cd concentrations in the whole soft tissues (P < 0.05). Analyses of the subcellular fractions showed that Cd concentrations and proportions in the metal-rich granule (MRG) were linearly and positively correlated with aqueous Cd concentrations and with the Cd concentrations in the whole soft tissues (P < 0.05). This suggests that the gills and mantle could be the main target organs for Cd bioaccumulation, and that the MRG could be the major site for Cd bioaccumulation and distribution. These results improve our under-standing of the bioaccumulation and distribution mechanisms of Cd in bivalves. (c) 2021 Elsevier B.V. All rights reserved.

  • 相关文献
作者其他论文 更多>>
置顶
购物车
反馈

© 京ICP备09089781号-29 主办单位：中国水产科学研究院

学术资源： 中国农业科学院 农业专业知识服务系统 农科联盟资源共建共享平台 中国农业科技文献与信息服务平台 中国农业期刊集成服务平台